Police have appealed for help to trace two boys seen at the time of a suspected arson attack on a house in Surrey.

Surrey Fire and Rescue Service crews spent two hours tackling the blaze in Roffey Close, Horley on Sunday evening.

The fire which severely damaged part of the ground floor is believed to have been started deliberately.

Surrey Police want to trace two boys aged between 15 and 17-years-old who were seen in the area at the time.

Det Sgt Simon Gray said: "This is a deeply concerning incident as it shows intent to cause harm to those who may have been inside the property at the time of the fire.

"Thankfully no-one was injured as the occupants of the property were not at home but things could have been a lot worse and I would appeal to anyone who has any information to contact us as a matter of urgency."